import Joi from 'joi';
/**
 * Checks if the data is valid type.
 * @param {Record<string, unknown>} data .
 * @param {Joi.PartialSchemaMap<T>} schema .
 * @return {Record<string, unknown>}
 */
export declare function validateData<T>(data: unknown, schema: Joi.ObjectSchema<T>): {
    isValidData: true;
    data: T;
} | {
    isValidData: false;
    message: string;
};
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